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Wordpress custom widget extending wp-widget class
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/** | |
* | |
* Banner Widget | |
* Note* - The WP_Widget class is located in wp-includes/class-wp-widget.php. | |
*/ | |
class Banner_Widget extends WP_Widget { | |
/** | |
* Register Widget With Wordpress | |
*/ | |
public function __construct() { | |
parent::__construct( | |
'banner_widget', // Base ID | |
__('Banner Widget', 'text_domain'), // Widget name | |
array( 'description' => __( 'Greg Reid Banner Widget', 'text_domain' ), ) | |
); | |
} | |
/** | |
* Back-end widget form. | |
* | |
* @see WP_Widget::form() | |
* | |
* @param array $instance Previously saved values from database. | |
*/ | |
public function form( $instance ) { | |
// if text contain a value, save it to $link | |
if ( isset( $instance[ 'link' ] ) ) { | |
$link = $instance[ 'link' ]; | |
} | |
// if text contain a value, save it to $text | |
if ( isset( $instance[ 'text' ] ) ) { | |
$text = $instance[ 'text' ]; | |
} | |
// if text contain a value, save it to $subtitle | |
if ( isset( $instance[ 'subtitle' ] ) ) { | |
$subtitle = $instance[ 'subtitle' ]; | |
} | |
// if title contain a value, save it to $title | |
if ( isset( $instance[ 'title' ] ) ) { | |
$title = $instance[ 'title' ]; | |
} | |
else { | |
// else set the $title to string - Title | |
$title = __( 'Title', 'text_domain' ); | |
} | |
?> | |
<p> | |
<label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label> | |
<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>"> | |
</p> | |
<p> | |
<label for="<?php echo $this->get_field_id( 'subtitle' ); ?>"><?php _e( 'Sub-Title:' ); ?></label> | |
<input class="widefat" id="<?php echo $this->get_field_id( 'subtitle' ); ?>" name="<?php echo $this->get_field_name( 'subtitle' ); ?>" type="text" value="<?php echo esc_attr( $subtitle ); ?>"> | |
</p> | |
<p> | |
<label for="<?php echo $this->get_field_id( 'text' ); ?>"><?php _e( 'Description:' ); ?></label> | |
<textarea rows="8" cols="40" class="widefat" id="<?php echo $this->get_field_id( 'text' ); ?>" name="<?php echo $this->get_field_name( 'text' ); ?>"><?php echo esc_attr( $text ); ?> | |
</textarea> | |
</p> | |
<p> | |
<label for="<?php echo $this->get_field_id( 'link' ); ?>"><?php _e( 'Link:' ); ?></label> | |
<input class="widefat" id="<?php echo $this->get_field_id( 'link' ); ?>" name="<?php echo $this->get_field_name( 'link' ); ?>" type="text" value="<?php echo esc_attr( $link ); ?>"> | |
</p> | |
<?php | |
} | |
// array $instance Stores values from database. | |
public function widget( $args, $instance ) { | |
$title = apply_filters( 'widget_title', $instance['title'] ); | |
echo $args['before_widget']; | |
if ( ! empty( $title ) ) | |
echo $args['before_title'] . '<h1 class=">' . 'bw-banner-title">' . $title . '</h1>' . $args['after_title']; | |
echo '<p class=' . 'bw-subtitle>' . ' <b>' . $instance['subtitle'] . '</b></p>'; | |
echo '<div class=' . 'bw-banner-textarea' . '>' . $instance['text']; | |
echo $args['after_widget']; | |
echo '<a class="' . 'bw-link" ' . 'href="' . $instance['link'] . '"' . '>' . '<button>INVITE GREG TO SPEAK</button>'. '</p>'; | |
} | |
/** | |
* Sanitize widget form values as they are saved. | |
* | |
* @see WP_Widget::update() | |
* | |
* @param array $new_instance Values just sent to be saved. | |
* @param array $old_instance Previously saved values from database. | |
* | |
* @return array Updated safe values to be saved. | |
*/ | |
public function update( $new_instance, $old_instance ) { | |
$instance = array(); | |
$instance['title'] = ( ! empty( $new_instance['title'] ) ) ? strip_tags( $new_instance['title'] ) : ''; | |
$instance['subtitle'] = ( ! empty( $new_instance['subtitle'] ) ) ? strip_tags( $new_instance['subtitle'] ) : ''; | |
$instance['text'] = ( ! empty( $new_instance['text'] ) ) ? strip_tags( $new_instance['text'] ) : ''; | |
$instance['link'] = ( ! empty( $new_instance['link'] ) ) ? strip_tags( $new_instance['link'] ) : ''; | |
return $instance; | |
} | |
} // Banner Widget Class | |
add_action( 'widgets_init', function(){ | |
register_widget( 'Banner_Widget' ); | |
}); |
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